This course is designed for specialists who need more in-depth knowledge of troubleshooting tools, techniques and customize. It’s based upon Yeastar certified technician courses.

Course Outline

The course consists of both theoretical and practical sessions.

Part I Background Knowledge
1. Command Line Interface
2. Analog telephony
3. BRI/PRI Telephony
4. Mobile Telephony
5. SIP
6. SDP
7. RTP/SRTP Protocol
9. SMS/SSMTP Debug

Part II Trouble shooting
10. Hardware Faults
11. Web GUI Faults
12. Extensions Issues
13. SIP Trunk Issues
14. PSTN Trunk Issues
15. ISDN Trunk Issues
16. GSM/3G Trunk Issues
17. SMS/USSD Issues
18. Voicemail Issues
19. Others

Training and Examination

Duration:2 days, total 16 hours (1-Day Free practical session)

Available Type: Classroom training

Associated Certification: Yeastar Certified Expert

Certification Exam:

  • The exam is taken on the final day after completion of training on the online training system.
  • The exam is an open book exam consisting of 30 choice questions
  • Passing score: 80%
  • Exam duration: 1 hour

Attempts: You are allowed 2 attempts to pass the exam and may not exit the exam once started. If you fail after 2 attempts, you are required to re-take the courses